The effect of synchronization of oestrus on the fertility of ewes inseminated artificially.
D000818:Animals; D004971:Estrus / Q000187:drug effects*; D005260:Female; D005298:Fertility / Q000187:drug effects*; D007315:Insemination, Artificial / Q000662:veterinary; D011247:Pregnancy; D011372:Progestins / Q000494:pharmacology*; D012756:Sheep / Q000502:physiology*
D011372:Progestins